Table 2.
Comparison between triple-negative (TN) and non-TN breast cancer
| Variables | No. of TN patients (%) (n = 136) | No. of non-TN (%) (n = 529) | P valuea |
|---|---|---|---|
| Age (years) | 0.003 | ||
| <35 | 18 (13.2) | 31 (5.9) | |
| ≥35 | 118 (86.8) | 498 (94.1) | |
| p53 | <0.001 | ||
| <25% | 71 (52.2) | 425 (80.3) | |
| ≥25% | 65 (47.8) | 94 (17.8) | |
| Unknown | 0 (0) | 10 (1.9) | |
| Ki-67 | <0.001 | ||
| <20% | 85 (62.5) | 495 (93.6) | |
| ≥20% | 51 (37.5) | 21 (4.0) | |
| Unknown | 0 (0) | 13 (2.5) | |
| Bcl2 | <0.001 | ||
| (−) | 90 (66.2) | 108 (20.8) | |
| (+) | 43 (31.6) | 409 (77.3) | |
| Unknown | 3 (2.2) | 12 (2.3) | |
| Epidermal growth factor receptor | 0.003 | ||
| (−) | 65 (47.8) | 275 (52) | |
| (+) | 10 (7.4) | 10 (1.9) | |
| Unknown | 61 (44.9) | 244 (52.0) | |
Note:
a
Based on Pearson’s χ2 test (using Fisher’s exact test if N ≤ 5).